US8047163B2 - Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning - Google Patents
Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning Download PDFInfo
- Publication number
- US8047163B2 US8047163B2 US11/957,849 US95784907A US8047163B2 US 8047163 B2 US8047163 B2 US 8047163B2 US 95784907 A US95784907 A US 95784907A US 8047163 B2 US8047163 B2 US 8047163B2
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- Prior art keywords
- gas
- water heater
- controller
- detecting unit
- warning
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
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- 230000006870 function Effects 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 7
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 7
- 230000000977 initiatory effect Effects 0.000 claims 1
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- 238000004886 process control Methods 0.000 description 15
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- 230000001012 protector Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- SBWGZAXBCCNRTM-CTHBEMJXSA-N n-methyl-n-[(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl]octanamide Chemical compound CCCCCCCC(=O)N(C)C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO SBWGZAXBCCNRTM-CTHBEMJXSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
- F24H9/2042—Preventing or detecting the return of combustion gases
- F24H9/205—Closing the energy supply
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/014—Alarm signalling to a central station with two-way communication, e.g. with signalling back
Definitions
- the invention relates to a kind of gas water heater with harmful gas monitoring and warning functions, especially a kind of gas water heater can monitor and warn gas-leaking and CO gas. Meanwhile, it also involves the monitoring and warning methods of the gas water heater.
- the invention is attributed to technical field of gas appliances for domestic use.
- Gas-leaking Protector of Gas Water Heater with an External A/D Convertor in Chinese design patent application 200510049317.5 provides a kind of gas-leaking protector of gas water heater with an external A/D convertor, through the external A/D convertor; gas sensor output is connected with the I/O input port of single-chip computer in water heater controller. Then the water heater controller is connected with the valve and warning circuits, achieving that the single-chip computer will cut off the gas source and warn when the gas is exceeded.
- the invention chiefly intends to put forward a kind of gas water heater having harmful gas monitoring and warning functions, especially a kind of gas water heater can monitor and warn gas-leaking and CO gas and offer corresponding monitoring and warning methods as well.
- the further purpose of the invention lies in putting forward a kind of gas water heater that can detect whether the warning function is run out, thus to ensure the reliability and safety in using gas water heater.
- the invention adopts the separate setup heater body and gas detector unit to gas water heater.
- the gas sensor is involved in the described gas detector unit, which is set up in the indoor place needs to be monitored and connected with the process control unit in the gas water heater body; the described gas detector unit and one of the process control units are connected to the warning unit.
- the monitoring and warning steps of the gas water heater in the invention are: the gas detector unit converts the received signal of gas concentration into electric signal, then transmits to the process control unit in water heater body through communication; the process control unit in water heater body compares the transmitted signal with the preset threshold. When the signal exceeds the threshold, a warning command will be sent; after receiving the warning command, the warning unit will send out warning signal.
- the monitoring and warning steps of the invention are: the gas detector unit converts the received signal of gas concentration into electric signal, and then transmits to the data process unit; the data process unit compares the transmitted signal with the preset threshold, and then transmits to the process control unit in water heater body through communication; or the data process unit directly transmits the signal to the process control unit in water heater body, then the process control unit compares the received signal with preset threshold; When the signal exceeds the threshold, a warning command will be made by the data process unit and one of the process control units; after receiving the warning command, the warning unit will send out a warning signal.
- the process control unit in water heater body and the gas detector unit are connected by duplex wire or wireless communications.
- the process control unit sends out a testing signal and transmits it to the gas detector unit in working. If the gas detector unit cannot make response normally, the process control unit sends out an announcing signal.
- a further perfection to the invention is that the control output port of the process control unit in water heater body is connected with the controlling unit of the gas transportation line valves.
- the gas detector unit can be flexibly fixed in the places that gas and CO concentration can be easily collected, according to the actual needs.
- the water heater is installed in safe and easily-controlled positions. If the user doesn't need gas detecting function or the gas detector unit is running out and in servicing, the process control unit in water heater body will work according to no warning function setup. Meanwhile, an announcing message of “The gas detector unit is run out” will be shown on the host computer. When the chief controller of the water heater detects the gas detector unit works normally, it accepts and responds to the signal sent by the gas detector unit in time and control the warning and cut off the gas source through processing.
- gas water heaters of various types especially the speedy gas water heater
- the gas detector unit can be installed separately, thus to overcome the limitations of the existing technologies, such as it can't monitor the leaking in transportation pipe or some other sections and other gas equipments may let out exhaust gas in application. Meanwhile, the invention can effectively prevent the accidents from causing by indoor gas-leaking or concentration of CO gas excess in using gas water heater and bring more use value to the user and the society.
- FIG. 1 is the circuit diagram of the implementing example 1 in the invention.
- FIG. 2 is the principle frame figure corresponding to the implementing example in FIG. 1 .
- FIG. 3 is the circuit principle figure of the implementing example 2 in the invention.
- FIG. 4 is the principle frame figure corresponding to the implementing example in FIG. 3 .
- FIG. 1 Gas water heater having gas-leaking and/or CO gas warning functions in this implementing example is shown as FIG. 1 .
- Gas detector unit 1 and the gas water heater body 2 are disassembled and can be installed separately.
- the two parts process data communications with the serial port communication chips U 1 (Type MAX202) and U 2 (Type MAX202) and the electric power is offered by the water heater.
- Data process chip IC 2 (Type H83694), display module 9 , communication chip U 2 , buzzer F 1 and gas valve Vav 1 functioning as the process control unit are contained in the water heater body.
- IC 2 contains the memory unit EEPROM8.
- CO sensor 5 Type TGS2442, data process chip IC 1 (Type Mega 8) and IC 1 serial port communication chips U 1 (Type MAX202) are contained in gas detector unit 1 , they process serial port communications with the water heater body.
- the I/O ports PB 1 and PB 2 of IC 1 output impulse signals control CO sensor 5 through on-and-off pipes T 3 and T 4 .
- CO sensor 5 can feel the gas concentration in the ambient environment through sensitive materials, and then outputs the change of voltage and transmits it to I/O ports PCO of IC 1 .
- PCO processes A/D transformation with the internal A/D transforming module and converts to practical concentration values. Meanwhile, PCO detects whether the CO concentration exceeds the defined warning concentration.
- IC 1 sends a message of concentration values to the data process chip IC 2 in the water heater body.
- IC 2 receives the data message from gas detector unit 1 through serial port communication chips U 2 , and then displays the data in time through display module 9 . Meanwhile, IC 2 sets the saving time of the data in terms of procedures and saves them in EEPROM 8 so as to offer useful data if necessary.
- IC 2 makes PB 1 and PB 2 control buzzer F 1 and gas valve Vav 1 switch through on-and-off pipes T 1 , T 2 and relay Re 1 .
- IC 1 can detect in time whether the CO sensor 5 is running out and transmits the message to IC 2 through communication chip U 1 and U 2 . If the detection is failed, IC 2 will control the operation of the water heater and provide a clue message based on the message.
- IC 2 When the concentration value of indoor CO gas is lower than the defined warning value, IC 2 outputs the message received from serial port communication chip U 2 to display module 9 , and the water heater works normally; when the concentration value of indoor CO gas is higher than the defined warning value, IC 2 outputs a control signal to on-and-off pipe T 2 and cuts off the power of gas valve Vav 1 through Relay Re 1 ; at the same time, IC 2 outputs the signal to on-and-off pipe T 1 and controls buzzer F 1 to warn; IC 2 also offers a data signal and outputs warning codes through display module 9 .
- gas detector unit 1 When the users apply other gas equipments instead of the gas water heater but here the water heater is electrically connected, if the indoor CO concentration doesn't achieve the defined warning concentration, gas detector unit 1 will feed back a concentration signal to IC 2 ; the chief controller IC 2 will show the signal on display module 9 after receiving it; if the indoor CO concentration increases and achieves the defined warning concentration, the chief controller IC 2 will start buzzer F 1 after receiving the signal, and then controls display module 9 to put up a flashing warning and sends out related control signals to prevent gas valve Vav 1 from starting.
- gas detector unit 1 When the indoor gas concentration resumes to the normal condition, gas detector unit 1 will feed back a signal to IC 2 ; after receiving the signal, IC 2 will stop the acousto-optic warning of buzzer F 1 and display module 9 and release a signal of forbidding opening the gas valve Vav 1 .
- gas sensor 5 when there is flammable gas and/or CO gas within the room, gas sensor 5 outputs related signals to the data process chip IC 1 after detecting the gas concentration; the data process chip IC 1 converts corresponding concentration numerical values after detecting the signals from sensor 5 and judges if the concentration value exceeds the defined warning concentration. Then IC 1 transmits the related data to the water heater data process chip IC 2 through data communication modules U 1 and U 2 ; based on related data, IC 2 controls display module 9 to show the concentration and saves the data on memory module 8 . If the concentration value exceeds the defined warning concentration, IC 2 will make warning module 6 to put up an acousto-optic warning and cut off the gas valve through gas valve control module 7 .
- the data process chip IC 1 can also directly transmit the signal to water heater data process chip IC 2 through data communication modules U 1 and U 2 .
- the data will be converted into corresponding numerical values by IC 2 and judged if the concentration value exceeds the defined warning concentration, then corresponding controlling measures will be made.
- the data process chip IC 1 can also transmit the signal to IC 2 through data communication modules U 1 and U 2 .
- Corresponding controlling measures can be made after judged by IC 2 .
- 6 ′ in the figure indicates that the warning module can be positioned with the detect unit as well and 8 ′ indicates that the saving module can be externally installed.
- gas sensor 5 When there is flammable gas and/or CO gas within the room, gas sensor 5 outputs related signals to the data process chip IC after detecting the gas concentration; the data process chip IC converts the data into corresponding concentration numerical values after detecting the signals from sensor 5 and judges if the concentration value exceeds the defined warning concentration. IC controls display module 9 to show the concentration based on the concentration and saves the data to memory module 8 . If the concentration value exceeds the defined warning concentration, IC will make warning module 6 to put up acousto-optic warning and cut off the gas valve through gas valve control module 7 .
- the communication mode can includes both wire and wireless, duplex and simplex; warning unit can be controlled either by the process control unit in the water heater body, or by the data process unit within the detect unit directly; display warning in the warning unit can either be shown on the screen of gas water heater, or set up individually; various separate devices within the circuit can be further integrated or the integrated devices can be further separated; and so on. Any technical scheme formed by adopting the equivalent substitution or the equivalent transformation is under the protection of the invention requirements.
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- Business, Economics & Management (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims (20)
Priority Applications (1)
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US11/957,849 US8047163B2 (en) | 2007-12-17 | 2007-12-17 | Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning |
Applications Claiming Priority (1)
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US11/957,849 US8047163B2 (en) | 2007-12-17 | 2007-12-17 | Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning |
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US20090151652A1 US20090151652A1 (en) | 2009-06-18 |
US8047163B2 true US8047163B2 (en) | 2011-11-01 |
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US11/957,849 Active - Reinstated 2029-11-06 US8047163B2 (en) | 2007-12-17 | 2007-12-17 | Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning |
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Cited By (13)
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US20120227682A1 (en) * | 2005-02-07 | 2012-09-13 | Emerson Electric Co. | Systems and Methods for Controlling a Water Heater |
CN103544813A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Self-inspection harmful gas leakage alarm suitable for petroleum refinery |
CN106710152A (en) * | 2016-12-30 | 2017-05-24 | 浙江海洋大学 | Engineering explosion formed toxic gas monitoring early warning system design |
TWI614465B (en) * | 2016-10-14 | 2018-02-11 | 保音股份有限公司 | System and method for predicting water heater failure |
CN110332697A (en) * | 2019-07-26 | 2019-10-15 | 台州黄岩马奇智能科技有限公司 | A kind of cold and hot water circulation control device of natural gas in home heating |
US11636870B2 (en) | 2020-08-20 | 2023-04-25 | Denso International America, Inc. | Smoking cessation systems and methods |
US11760170B2 (en) | 2020-08-20 | 2023-09-19 | Denso International America, Inc. | Olfaction sensor preservation systems and methods |
US11760169B2 (en) | 2020-08-20 | 2023-09-19 | Denso International America, Inc. | Particulate control systems and methods for olfaction sensors |
US11813926B2 (en) | 2020-08-20 | 2023-11-14 | Denso International America, Inc. | Binding agent and olfaction sensor |
US11828210B2 (en) | 2020-08-20 | 2023-11-28 | Denso International America, Inc. | Diagnostic systems and methods of vehicles using olfaction |
US11881093B2 (en) | 2020-08-20 | 2024-01-23 | Denso International America, Inc. | Systems and methods for identifying smoking in vehicles |
US11932080B2 (en) | 2020-08-20 | 2024-03-19 | Denso International America, Inc. | Diagnostic and recirculation control systems and methods |
US12017506B2 (en) | 2020-08-20 | 2024-06-25 | Denso International America, Inc. | Passenger cabin air control systems and methods |
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US8047163B2 (en) * | 2007-12-17 | 2011-11-01 | Aos Holding Company | Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning |
WO2011050005A2 (en) | 2009-10-19 | 2011-04-28 | Bevtech Incorporated | Gas line leakage monitor for beverage dispensing system preventing unintended environmental discharge |
CN102608935B (en) * | 2012-03-21 | 2014-01-15 | 成都前锋电子有限责任公司 | Communication control system for control main board and display panel of gas instantaneous water heater |
CN103544812A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Harmful gas leakage alarm suitable for petroleum refinery |
CN104110869A (en) * | 2013-04-22 | 2014-10-22 | 青岛经济技术开发区海尔热水器有限公司 | Has CH4Gas water heater with CO and ignition monitoring device and alarm function |
CN103488149B (en) * | 2013-09-25 | 2016-07-06 | 深圳市九洲电器有限公司 | A kind of indoor flood monitoring system and monitoring method thereof |
CN105020900A (en) * | 2015-06-29 | 2015-11-04 | 柳州蚊敌香业有限公司 | Automatically controlled gas water heater capable of monitoring concentration of CO and alarming |
CN108800594A (en) * | 2017-04-28 | 2018-11-13 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
CN111693654A (en) * | 2020-07-17 | 2020-09-22 | 南京科力赛克安全设备有限公司 | Gas detector and method for controlling same |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120227682A1 (en) * | 2005-02-07 | 2012-09-13 | Emerson Electric Co. | Systems and Methods for Controlling a Water Heater |
US9103550B2 (en) * | 2005-02-07 | 2015-08-11 | Emerson Electric Co. | Systems and methods for controlling a water heater |
CN103544813A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Self-inspection harmful gas leakage alarm suitable for petroleum refinery |
TWI614465B (en) * | 2016-10-14 | 2018-02-11 | 保音股份有限公司 | System and method for predicting water heater failure |
CN106710152A (en) * | 2016-12-30 | 2017-05-24 | 浙江海洋大学 | Engineering explosion formed toxic gas monitoring early warning system design |
CN110332697A (en) * | 2019-07-26 | 2019-10-15 | 台州黄岩马奇智能科技有限公司 | A kind of cold and hot water circulation control device of natural gas in home heating |
US11636870B2 (en) | 2020-08-20 | 2023-04-25 | Denso International America, Inc. | Smoking cessation systems and methods |
US11760170B2 (en) | 2020-08-20 | 2023-09-19 | Denso International America, Inc. | Olfaction sensor preservation systems and methods |
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